00:01
So in this problem, we are given this graph.
00:08
We have a center point, and we have spokes going out from it like such, with points out there.
00:31
And we're asked first to give the number of edges in the graph.
00:44
And we're asked to give the number of vertices.
00:52
We're asked to give the number of vertices of odd degree.
01:11
We're asked to determine where the graph is connected.
01:22
And lastly, we're asked if it's a complete graph.
01:32
Okay.
01:34
So let's do this first.
01:39
An edge connects to vertices.
01:50
So let's do part b.
01:52
Let's get the number of vertices in here first.
01:54
First.
01:55
So i can start number one, two, three, three, four, five, six, seven, right? they're all points of intersection on this graph or corners.
02:11
Okay.
02:12
So the number of vertices, seven.
02:16
Then the number of edges will be the lines that connect or the line segments that connect vertices.
02:25
So what do i have? i have one, two, three, three.
02:30
Five, six.
02:32
There's six of those.
02:35
All right.
02:37
Now, the degree is the number of edges that come into a vertices...